1167712056 has 96 divisors (see below), whose sum is σ = 3621421440. Its totient is φ = 332979264.

The previous prime is 1167712043. The next prime is 1167712069. The reversal of 1167712056 is 6502177611.

It is an interprime number because it is at equal distance from previous prime (1167712043) and next prime (1167712069).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1167712056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293875 + ... + 297821.

It is an arithmetic number, because the mean of its divisors is an integer number (37723140).

Almost surely, 2^1167712056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1167712056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810710720).

1167712056 is an abundant number, since it is smaller than the sum of its proper divisors (2453709384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1167712056 is a wasteful number, since it uses less digits than its factorization.

1167712056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553 (or 4546 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1167712056 is about 34171.8020595929. The cubic root of 1167712056 is about 1053.0409369290.

Adding to 1167712056 its reverse (6502177611), we get a palindrome (7669889667).

The spelling of 1167712056 in words is "one billion, one hundred sixty-seven million, seven hundred twelve thousand, fifty-six".